For better performance, please switch to
the second generation of Windaq Add-on, FFT II
Analog oscilloscope-like persistence control helps to study the
trend of the spectrum (Refer to the above screen shot for visual
While acquiring spectrum, you may use the
mouse to drag the waveform up and down, or double-click the
buttons to change the scaling of the waveform.
you stop the live frequency display, you may click on the chart to enable a
cursor and drag it around to study the spectrum
Multiple FFT windows for different channels
Channel number is a 0-based index to Windaq's scanlist. For
example, if Windaq has channel 3,4,6,7 enabled, one can enter 0
for channel 3, 1 for channel 4, 2 for channel 6 and 3 for channel
Intelligent Channel Select: Highlight/Select
a channel in Windaq and fire up this Windaq add-on, and it will use
the selected channel as its default channel
Due to Windaq's memory allocation approach, up 29 channels can be
enabled in Windaq if you wish to use this add-on
FFT1024's resolution is about 10-bit, thus
weak frequency components will be buried in the noise. To address this
problem, Dynamic Amplifier option is created.
When checked, waveform's average DC component is removed, then
amplified to at least half dynamic range, before performing FFT. As
the result, low level signal is much easier to study.
See the comparison below. This
option becomes obsolete if you move to FFT II.
Bonus for users with paid
No ad-line in the
No run time limit
To Use WinDaq Add-ons
Confirm WinDaq 3.16 or higher is installed on your
Install WinDaq add-ons.
Start WinDaq, and you will find the WinDaq add-ons
integrated into Windaq->View->Add-ons menu (see the screen
Intelligent Channel Selection: Highlight/Select a
channel in WinDaq and fire up the WinDaq add-on you wish, and the
WinDaq add-on will use the selected channel as its default channel.
If channel index number is required for a WinDaq
add-on, please enter the 0-based index to Windaq's scanlist. For
example, if WinDaq has channel 3,4,6,7 enabled, one can enter 0 for
channel 3, 1 for channel 4, 2 for channel 6 and 3 for channel 7.
Do not change WinDaq's configurations while
WinDaq add-ons are running, or some add-ons may terminate.